There is a mound of g g pounds of gravel in a quarry. Throughout the day, 4 0 0 4 0 0 pounds of gravel
There is a mound of gg pounds of gravel in a quarry. Throughout the day, pounds of gravel are added to the mound. Two orders of pounds are sold, and the gravel is removed from the mound. At the end of the day, the mound has pounds of gravel. Write the equation that describes the situation.